Compressor Maintenance: Oil & Filter Changes

Table of Contents

  1. Service Intervals
  2. Compressor Oil & Filter
  3. Engine Oil & Filter
  4. Fuel Filter
  5. Compressor Air Filter
  6. Engine Air Filter
  7. Air Oil Separator Filter

 

1. Service Intervals

Service intervals for the 185CFM, 300CFM, and 425CFM Rotair compressors are the same. Please refer to your user manual for complete instructions and more details.

  Replacement Period
  First 50 Hours Every 500 Hours Every 2000 Hours
Compressor Oil X X  
Compressor Oil Filter X X  
Engine Oil X X  
Engine Oil Filter X X  
Fuel Filter X X  
1st Stage Compressor Air Filter   X  
2nd Stage Compressor Air Filter   X  
1st Stage Engine Air Filter   X  
2nd Stage Engine Air Filter   X  
Air Oil Separator Filter     X

 

Want to make things simple?

A maintenance kit includes all the necessary oil filters, fuel filters, and air filters needed for your particular maintenance interval. 

Compressor Maintenance Kits

 

 


2. Compressor Oil & Filter

Compressor Oil Change Schedule

Change oil and filter after the first 50 hours, and then every 500 hours after that. Oil change intervals must never exceed 1,500 hours of work.

Take into consideration the working conditions in which the machine operates (dusty conditions, very high temperature, etc can require more frequent oil changes)

Compressor Oil Type

Rotair-Elgi-Compressor-Oil-Airlube-Bottle-on-Transparent

Recommended: Purchase AirLube™ Portable Compressor Oil here.

Compressor oil should be AW-46 or ISO-46 Hydraulic Oil (AW = All Weather), such as Rotair Airlube (recommended) or Shell Corena 46. Keep in mind that compressor oil is different than engine oil. 

Compressor Oil Capacity

  D185T4F
(185 CFM)
D300T4F
(300 CFM)
D425T4F
(425 CFM)
Compressor Oil Capacity 2.4 gallons 4.5 gallons 5.3 gallons

Compressor Oil Filters

The compressor oil and the compressor oil filter must be replaced in conjunction.

D185T4F
(185 CFM)
D300T4F
(300 CFM)
D425T4F
(425 CFM)
compressor-oil-filter-185 compressor-oil-filter-300 compressor-oil-filter-425
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Compressor User Manuals

Refer to your compressor user manual for additional details.

D185T4F User Manual (185CFM)

D300T4F User Manual (300CFM)

D425T4F User Manual (425CFM)

 


3. Engine Oil & Filter

Engine Oil Change Schedule

Change oil and filter after the first 50 hours, and then every 500 hours after that. 

Engine Oil Type

Viscosity must be appropriate to the ambient temperature to which the engine is to be exposed.

Kohler Engine: Recommended Oil
Viscosity SAE

10W-30
(-20°C ÷ +45°C)

5W-30
(-30°C ÷ +30°C)
5W-40
(-30°C ÷ +45°C)
LOW S.A.P.S.
With Specifications API CJ-4
ACEA E6 - E7 - E9


Cummins Engine: Recommended Oil

The Cummins user manual recommends the following: "Use a high-quality 5W-40 heavy-duty engine oil, such as Valvoline Premium Blue Extreme or its equivalent." (page 260)

cummins oiil chart 1
Cummins Engineering Standard (CES) Classifications American Petroleum Institute (API) Classification Association des Constructeurs Européen d'Automobiles (ACEA) Classification
CES-20081 API CJ-4 ACEA E-9

Engine Oil Capacity

  D185T4F
(185 CFM)
D300T4F
(300 CFM)
D425T4F
(425 CFM)
Engine Oil Capacity 8.9 quarts
(2.2 gallons)
11.5 quarts
(2.8 gallons)
14.8 quarts
(3.7 gallons)

Engine Oil Filters

The engine oil and the engine oil filter must be replaced in conjunction.

D185T4F
(185 CFM)
D300T4F
(300 CFM)
D425T4F
(425 CFM)
engine-oil-filter-185-300 engine-oil-filter-185-300 engine-oil-filter-425
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Engine User Manuals

Kohler KDI 1903 TCR (Inside Rotair D185T4F)

Kohler KDI 2504 TCR (Inside Rotair D300T4F)

Cummins QSF3.8 CM2350 F107 (Inside Rotair D425T4f)

 


4. Fuel Filter

Fuel Filter Change Schedule

Change fuel filter after the first 50 hours, and then every 500 hours after that, or as needed. 

Fuel Filters

Kohler KDI 1903 TCR Kohler KDI 2504 TCR Cummins QSF3.8 CM2350 F107
185 CFM Compressors 300 CFM Compressors 425 CFM Compressors
ED0021753180-S_1024x1024@2x ED0021753180-S_1024x1024@2x 191-0904-S1_1024x1024@2x 191-0905-S_1024x1024@2x
Fuel Filter Fuel Filter Fuel Pre-Filter Fuel Filter
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5. Compressor Air Filter

Compressor Air Filter Change Schedule

  • Check and clean air filters every 100 hours. May need to be checked more often, up to a daily basis, depending on the environment the machine runs in.
  • They can be cleaned several times with compressed air, but never with water.
  • Replace every 500 hours.

Compressor Air Filters

  D185T4F
(185 CFM)
D300T4F
(300 CFM)
D425T4F
(425 CFM)
1st Stage Compressor Air Filter 162-576-S2_1024x1024@2x 162-582-S2_d5b5c590-10a9-4557-a37e-df1039529843_1024x1024@2x 162-0080-s1_1024x1024@2x
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2nd Stage Compressor Air Filter 162-577-s1_c9f249d3-ca3a-4e73-aa17-558f5356becb_1024x1024@2x 162-583-s1_1024x1024@2x 162-0081-s2_1024x1024@2x
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6. Engine Air Filter

Engine Air Filter Change Schedule

  • Check and clean air filters every 100 hours. May need to be checked more often, up to a daily basis, depending on the environment the machine runs in.
  • They can be cleaned several times with compressed air, but never with water.
  • Replace every 500 hours.

Engine Air Filters

  Kohler KDI 1903 TCR Kohler KDI 2504 TCR Cummins QSF3.8 CM2350 F107
  185 CFM Compressors 300 CFM Compressors 425 CFM Compressors
1st Stage Engine Air Filter 162-0086-s2_dda26678-9432-4a81-8fb0-7ee74dcaaa89_1024x1024@2x 162-0085-S1_1024x1024@2x 162-02600-S_1024x1024@2x
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2nd Stage Engine Air Filter 162-0087-s1_540x 162-0084-s1_1024x1024@2x 162-02602-S1_1024x1024@2x
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7. Air Oil Separator Filter

Air Oil Separator Filter Change Schedule

  • Replace after 2000 hours, depending on conditions.

Air Oil Separator Filters

D185T4F
(185 CFM)
D300T4F
(300 CFM)
D425T4F
(425 CFM)
157-171-S2_6c12234b-0728-4040-beb1-78e5562e2330_1024x1024@2x 157-180-S1_1024x1024@2x 157-181-s1_1024x1024@2x
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Remember, buying a maintenance kit gives you all the necessary filters needed for your particular maintenance interval. 

Compressor Maintenance Kits